1. Aker Engineering Malaysia Sdn Bhd
  2. Cekap Technical Services Sdn. Bhd.
  3. Environmental Resources Management (M) Sdn. Bhd.
  4. Foster Wheeler E & C (M) Sdn. Bhd.
  5. Innovative Fluid Process Sdn. Bhd.
  6. MECIP Global Engineers Sdn. Bhd.
  7. Minconsult Sdn. Bhd.
  8. MMC Oil and Gas Engineering Sdn. Bhd.
  9. Mott Macdonald (M) Sdn. Bhd.
  10. Pegasus Asia Pacific Sdn Bhd
  11. Protek Engineers Sdn. Bhd.
  12. Ranhill Worley Parsons Sdn. Bhd.
  13. RNZ Integrated (M) Sdn. Bhd.
  14. Synergy Oil & Gas Engineering Sdn Bhd
  15. Technip Consultant (M) Sdn. Bhd.
  16. Toyo Engineering & Construction Sdn Bhd
  17. Blackstone Process Solutions Sdn Bhd
  18. Emerson Process Management (Malaysia)
  19. Peritus International Sdn Bhd
  20. AECOM Perunding Sdn Bhd
  21. ENSERV Sdn Bhd
  22. UIE Solutions Sdn Bhd
  23. Winmore Engineering Sdn Bhd
  24. R&A Power Industrial Distribution Sdn Bhd
  25. Malaysia Marine & Heavy Engineering Sdn Bhd
  26. Perunding Prism Sdn Bhd
  27. Water Engineering Technology Sdn Bhd
  28. WEG South East Asia Sdn Bhd(Formerly known as Watt Euro-Drive (M) Sdn Bhd
  29. Fluor Daniel International (M) Sdn Bhd
  30. Wood Group Mustang (M) Sdn Bhd(Formerly known as Mustang Sime Darby Sdn Bhd)
  31. IGL Services Sdn Bhd
  32. Tanjung Offshore Services Sdn Bhd
  33. SEAMOG Group Sdn Bhd